82130612 has 12 divisors (see below), whose sum is σ = 145548480. Its totient is φ = 40545336.

The previous prime is 82130611. The next prime is 82130617. The reversal of 82130612 is 21603128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82130611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129638 + ... + 130269.

It is an arithmetic number, because the mean of its divisors is an integer number (12129040).

Almost surely, 2^82130612 is an apocalyptic number.

It is an amenable number.

82130612 is a deficient number, since it is larger than the sum of its proper divisors (63417868).

82130612 is a wasteful number, since it uses less digits than its factorization.

82130612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259990 (or 259988 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 82130612 is about 9062.5941098562. The cubic root of 82130612 is about 434.6786934561.

The spelling of 82130612 in words is "eighty-two million, one hundred thirty thousand, six hundred twelve".